A comet that could put on a dazzling show when it zooms through the inner solar system later this year is already blasting out huge amounts of gas and dust, new observations by a NASA spacecraft show.
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CAPE CANAVERAL, Florida (Reuters) - Reports last summer than NASA's long-lived Voyager 1 space probe had finally left the solar system turned out to be a bit premature, scientists said on Thursday.
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epa03436601 A wide-field view of the sky around the bright star Alpha Centauri was created from photographic images forming part of the Digitized Sky Survey 2. The star appears so big just because of the scattering of light by the telescope's optics as well as in the photographic emulsion. In a pape

An alien artifact like the Voyager probes' "golden record," which contains coded information about Earth as well as recordings of earthly sights and sounds, would elude our attention if it were in our solar system. In fact, we might not even detect the Voyager probes.